Despite the late check-in(because of arrival time), the check-in process was very simple. Free Wifi was useful and Free breakfast (such as some bread, fruits, cereal, drinks, snacks, vegetables for salad etc.) was fine. Also two staffs were really kind. In my room, there were extremely soft and comfortable beds greeting me. Its pillow and covers were fluffly. Moreover, location is wonderful (30 seconds' walk from Phra Khanong Station, BTS,) and there is a drugstore and a mart near Hide and Seek.
If I visit in Bangkok again, I will definitely stay here.